›› 2014, Vol. 23 ›› Issue (9): 94212-094212.doi: 10.1088/1674-1056/23/9/094212

• ELECTROMAGNETISM, OPTICS, ACOUSTICS, HEAT TRANSFER, CLASSICAL MECHANICS, AND FLUID DYNAMICS • 上一篇    下一篇

Designing analysis of the polarization beam splitter in two communication bands based on a gold-filled dual-corephotonic crystal fiber

范振凯, 李曙光, 范玉秋, 张婉, 安国文, 鲍亚杰   

  1. Key Laboratory of Metastable Materials Science and Technology, College of Science, Yanshan University, Qinhuangdao 066004, China
  • 收稿日期:2013-12-11 修回日期:2014-03-26 出版日期:2014-09-15 发布日期:2014-09-15
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant Nos. 61178026) and the Natural Science Foundation of Hebei Province, China (Grant No. E2012203035).

Designing analysis of the polarization beam splitter in two communication bands based on a gold-filled dual-corephotonic crystal fiber

Fan Zhen-Kai (范振凯), Li Shu-Guang (李曙光), Fan Yu-Qiu (范玉秋), Zhang Wan (张婉), An Guo-Wen (安国文), Bao Ya-Jie (鲍亚杰)   

  1. Key Laboratory of Metastable Materials Science and Technology, College of Science, Yanshan University, Qinhuangdao 066004, China
  • Received:2013-12-11 Revised:2014-03-26 Online:2014-09-15 Published:2014-09-15
  • Contact: Li Shu-Guang E-mail:shuguangli@ysu.edu.cn
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant Nos. 61178026) and the Natural Science Foundation of Hebei Province, China (Grant No. E2012203035).

摘要: We design a novel kind of polarization beam splitter based on a gold-filled dual-core photonic crystal fiber (DC-PCF). Owing to filling with two gold wires in this DC-PCF, its coupling characteristics can be changed greatly by the second-order surface plasmon polariton (SPP) and the resonant coupling between the surface plasmon modes and the fiber-core guided modes can enhance the directional power transfer in the two fiber-cores. Numerical results by using the finite element method show the extinction ratio at the wavethlengths of 1.327 μm and 1.55 μm can reach-58 dB and-60 dB and the bandwidths as the extinction ratio better than-12 dB are about 54 nm and 47 nm, respectively. Compared with the gold-unfilled DC-PCF, a 1.746-mm-long gold-filled DC-PCF is better applied to the polarization beam splitter in the two communication bands of λ=1.327 μm and 1.55 μm.

关键词: photonic crystal fiber, polarization beam splitter, surface plasmon

Abstract: We design a novel kind of polarization beam splitter based on a gold-filled dual-core photonic crystal fiber (DC-PCF). Owing to filling with two gold wires in this DC-PCF, its coupling characteristics can be changed greatly by the second-order surface plasmon polariton (SPP) and the resonant coupling between the surface plasmon modes and the fiber-core guided modes can enhance the directional power transfer in the two fiber-cores. Numerical results by using the finite element method show the extinction ratio at the wavethlengths of 1.327 μm and 1.55 μm can reach-58 dB and-60 dB and the bandwidths as the extinction ratio better than-12 dB are about 54 nm and 47 nm, respectively. Compared with the gold-unfilled DC-PCF, a 1.746-mm-long gold-filled DC-PCF is better applied to the polarization beam splitter in the two communication bands of λ=1.327 μm and 1.55 μm.

Key words: photonic crystal fiber, polarization beam splitter, surface plasmon

中图分类号:  (Fiber optics)

  • 42.81.-i
42.81.Pa (Sensors, gyros) 71.45.Gm (Exchange, correlation, dielectric and magnetic response functions, plasmons)